voice_ramp_volume
Section: Allegro manual (3)
Updated: version 4.2.2
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NAME
voice_ramp_volume - Starts a volume ramp for a voice. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
void voice_ramp_volume(int voice, int time, int endvol);
DESCRIPTION
Starts a volume ramp (crescendo or diminuendo) from the current volume to
the specified ending volume, lasting for time milliseconds. The volume is
a value in the range 0-255.
SEE ALSO
voice_set_volume(3)